[USRP-users] uhd_find_devices fails on E100

Ben Hilburn ben.hilburn at ettus.com
Fri Feb 24 13:56:37 EST 2012


Also, it's very possible that your Overo isn't seated properly.  Will you
shut it down, pull off your Overo, and re-seat it?  Sometimes they get
knocked around during shipping.

Cheers,
Ben
----------------------------
Ben Hilburn <http://goo.gl/5DdZ3> @ Ettus Research, LLC<http://www.ettus.com/>



On Fri, Feb 24, 2012 at 10:04 AM, Ben Hilburn <ben.hilburn at ettus.com> wrote:

> Ahmed -
>
> It looks like your E100 cannot talk to its own EEPROM.  This is usually
> caused by another device not behaving properly on the i2c bus.
>
> Do you have any peripherals plugged in to your E100? A monitor, for
> example?
>
> If so, will you unplug all peripherals, reboot your E100, and try again?
>
> Cheers,
> Ben
> ----------------------------
> Ben Hilburn <http://goo.gl/5DdZ3> @ Ettus Research, LLC<http://www.ettus.com/>
>
>
>
> On Fri, Feb 24, 2012 at 6:48 AM, Ahmed Alsawi <ahmedalsawi2012 at gmail.com>wrote:
>
>> hi all,
>> I working on E100 with official image  UHD 003.004.
>> After booting,When executing uhd_find_devices and uhd_usrp_probe they
>> fail
>> i think uhd_find_devices should have serial number.isn't it?
>> Any idea what is wrong.
>>
>> root at usrp-e1xx:~# uhd_find_devices
>> linux; GNU C++ version 4.5.3 20110311 (prerelease); Boost_104500;
>> UHD_003.004.000-7dc76db
>>
>>  --------------------------------------------------
>> -- UHD Device 0
>> --------------------------------------------------
>> Device Address:
>>     type: e100
>>     node: /dev/usrp_e0
>>     name:
>>     serial:
>>
>> root at usrp-e1xx:~# uhd_usrp_probe
>> linux; GNU C++ version 4.5.3 20110311 (prerelease); Boost_104500;
>> UHD_003.004.000-7dc76db
>>
>> -- Opening device node /dev/usrp_e0...
>> Error: AssertionError: ::ioctl(_node_fd, I2C_RDWR, &data) >= 0
>>   in virtual void i2c_dev_iface::write_i2c(uint8_t, const
>> uhd::byte_vector_t&)
>>   at /home/root/src/uhd.git/host/lib/usrp/e100/e100_ctrl.cpp:148
>>
>>
>> _______________________________________________
>> USRP-users mailing list
>> USRP-users at lists.ettus.com
>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>>
>>
>
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